diff --git a/src/network/mcpe/ChunkRequestTask.php b/src/network/mcpe/ChunkRequestTask.php
index a8b135d97b..d90e0cd32d 100644
--- a/src/network/mcpe/ChunkRequestTask.php
+++ b/src/network/mcpe/ChunkRequestTask.php
@@ -25,6 +25,7 @@ namespace pocketmine\network\mcpe;
 
 use pocketmine\network\mcpe\compression\CompressBatchPromise;
 use pocketmine\network\mcpe\compression\Compressor;
+use pocketmine\network\mcpe\convert\RuntimeBlockMapping;
 use pocketmine\network\mcpe\protocol\LevelChunkPacket;
 use pocketmine\network\mcpe\protocol\serializer\PacketBatch;
 use pocketmine\network\mcpe\serializer\ChunkSerializer;
@@ -67,7 +68,7 @@ class ChunkRequestTask extends AsyncTask{
 	public function onRun() : void{
 		$chunk = FastChunkSerializer::deserialize($this->chunk);
 		$subCount = ChunkSerializer::getSubChunkCount($chunk);
-		$payload = ChunkSerializer::serialize($chunk, $this->tiles);
+		$payload = ChunkSerializer::serialize($chunk, RuntimeBlockMapping::getInstance(), $this->tiles);
 		$this->setResult($this->compressor->compress(PacketBatch::fromPackets(LevelChunkPacket::withoutCache($this->chunkX, $this->chunkZ, $subCount, $payload))->getBuffer()));
 	}
 
diff --git a/src/network/mcpe/serializer/ChunkSerializer.php b/src/network/mcpe/serializer/ChunkSerializer.php
index c2a1d0fdf6..9b7a4a9bc2 100644
--- a/src/network/mcpe/serializer/ChunkSerializer.php
+++ b/src/network/mcpe/serializer/ChunkSerializer.php
@@ -51,10 +51,9 @@ final class ChunkSerializer{
 		return 0;
 	}
 
-	public static function serialize(Chunk $chunk, ?string $tiles = null) : string{
+	public static function serialize(Chunk $chunk, RuntimeBlockMapping $blockMapper, ?string $tiles = null) : string{
 		$stream = new NetworkBinaryStream();
 		$subChunkCount = self::getSubChunkCount($chunk);
-		$blockMapper = RuntimeBlockMapping::getInstance();
 		for($y = 0; $y < $subChunkCount; ++$y){
 			$layers = $chunk->getSubChunk($y)->getBlockLayers();
 			$stream->putByte(8); //version